Picking the right export resolution

The export panel offers five preset sizes — 1920×1080, 2560×1440, 3840×2160, 1080×1920 and 2000×2000 — plus a 1×/2×/4× quality multiplier. Five times three is fifteen possible combinations, most of which you should never pick. Here is a way to narrow it to one.

Decide where the image lives first

The right resolution is determined by the destination, not by aiming high "just in case". Pick the destination, then read off the size:

What the quality multiplier actually does

The 1×, 2× and 4× choice does not change the preset's pixel dimensions — those are fixed by the size you pick. Internally, the canvas renders at the multiplied resolution and downscales to the chosen output, which is the same trick a "retina" or "high-DPI" render uses. The visible effect is sharper edges on small-scale features (stars, dots, grain) and slightly cleaner gradients.

• 1× (Standard). Match output pixels exactly. The default, and the right choice for screen-only delivery.
• 2× (Retina). Doubles the working canvas before downscaling. Worth it for printed material, for e-book covers, and for high-density displays where 1× shows visible grid steps in fine patterns.
• 4× (Ultra). Four times the working canvas. Slow on older machines and overkill for almost everything that lives on a screen. Reserve it for print at large physical sizes (A2 and up).

File size: where it goes

PNG file size grows roughly with the number of distinct colours and the amount of high-frequency detail. For black backgrounds:

• Solid or simple gradient + no pattern — tiny. A 4K PNG of "near-black with vignette" can land under 200 KB because PNG compresses long runs of similar pixels well.
• Noise / grain at high density — large. Random per-pixel variation defeats PNG's run-length compression. A 4K noise wall can run several megabytes.
• Stars, dots, grid — medium. Repeating low-detail patterns compress well; lots of stars at high density compresses badly.

If file size matters (web hero, email signature), drop pattern density before dropping resolution. A 1920×1080 background at 5% noise is usually smaller and sharper than a 2560×1440 export at 30%.

Common mistakes

1. Exporting at 4K Ultra "to be safe" for a website hero. The browser will downscale it on every visit, costing your visitors bandwidth for no visible benefit. Match the rendered size of the hero plus a 1.5–2× margin.
2. Picking the Square preset for a desktop wallpaper. 2000×2000 will be cropped at the top and bottom by the desktop. Use 2560×1440 or 3840×2160 instead.
3. Picking Mobile (1080×1920) for an Instagram square post. Use 2000×2000 — the platform crops vertical images aggressively.
4. Stretching 1080p to 4K. The generator can render at 4K natively; never upscale a 1080p export afterwards. The pattern detail will not magically reappear.
5. Forgetting watermark on a downloadable share. If you intend to share the image and want a credit on it, tick "Add Attribution" in the export panel before you click Export.

A worked example

You need a backdrop for a 16:9 slide deck that will be screen-shared on a video call.

1. Destination: slide deck → 1920×1080 is the right preset.
2. Delivery: video call → final pixels will be downscaled by the conferencing tool to roughly 1280×720. There is no visual benefit to 4× quality. Pick 1×.
3. Pattern: anything stronger than low-density noise will compress poorly when the call dynamically lowers bitrate. Pick "none" or noise at ~10%. The pattern guide has more on this.
4. Colour: pure black flickers under aggressive video compression; use near-black instead. See pure vs near-black.

Result: 1920×1080, 1×, "none" pattern, near-black colour. Tiny file, sharp on screen, robust on a flaky video call.

Quick checklist before you export

• Have I matched the preset to the destination, not to "biggest available"?
• Is the quality multiplier doing real work (fine pattern? print?), or am I just inflating the file?
• Is the pattern density appropriate for the size? (Coarse-looking grain at 1080p will look like sand at 4K.)
• If the image will be shared, is the watermark setting set the way I want?

What to do next

Open the generator, set up the look using the pattern guide, then return to the export panel with a single destination in mind. If the image is going onto a real interface, read about black backgrounds in web design for contrast and accessibility caveats. If you are still picking the base colour, see pure black vs near-black. For wallpaper-specific cropping and lock-screen safe areas, see wallpapers; for streaming or video backdrops where compression is the constraint, see video and streams. If your export is showing visible bands, the grain and banding page explains why and how to fix it.

Last reviewed on 28 April 2026.